Fig. 1: Complex bicyclo[3.3.1]nonane-containing natural products.
![Fig. 1: Complex bicyclo[3.3.1]nonane-containing natural products.](http://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41467-020-14354-5/MediaObjects/41467_2020_14354_Fig1_HTML.png)
a Members are found across all areas of natural product space and therapeutic area. b The large family of terpene-polyketide hybrids (meroterpenes) as a particularly prolific sources of bicyclo[3.3.1] nonanes.